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1. (WO1989000631) ROCK EXCAVATING SHOVEL
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1989/000631 International Application No.: PCT/EP1987/000399
Publication Date: 26.01.1989 International Filing Date: 22.07.1987
IPC:
E02F 3/20 (2006.01) ,E02F 3/407 (2006.01) ,E02F 3/96 (2006.01) ,E02F 3/18 (2006.01) ,E02F 5/02 (2006.01)
E FIXED CONSTRUCTIONS
02
HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL-SHIFTING
F
DREDGING; SOIL-SHIFTING
3
Dredgers; Soil-shifting machines
04
mechanically-driven
18
with digging wheels turning round an axis
20
with tools that only loosen the material
E FIXED CONSTRUCTIONS
02
HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL-SHIFTING
F
DREDGING; SOIL-SHIFTING
3
Dredgers; Soil-shifting machines
04
mechanically-driven
28
with digging tools mounted on a dipper- or bucket-arm, e.g. dippers, buckets
36
Component parts
40
Dippers; Buckets
407
with ejecting device
E FIXED CONSTRUCTIONS
02
HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL-SHIFTING
F
DREDGING; SOIL-SHIFTING
3
Dredgers; Soil-shifting machines
04
mechanically-driven
96
with arrangements for alternate use of different digging elements
E FIXED CONSTRUCTIONS
02
HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL-SHIFTING
F
DREDGING; SOIL-SHIFTING
3
Dredgers; Soil-shifting machines
04
mechanically-driven
18
with digging wheels turning round an axis
E FIXED CONSTRUCTIONS
02
HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL-SHIFTING
F
DREDGING; SOIL-SHIFTING
5
Dredgers or soil-shifting machines for special purposes
02
for digging trenches or ditches
Applicants:
HACKMACK, Alfred [DE/DE]; DE
Inventors:
HACKMACK, Alfred; DE
Priority Data:
Title (EN) ROCK EXCAVATING SHOVEL
(FR) PELLE DE DEROCHAGE
Abstract:
(EN) A rock excavating shovel (1) has hinged chisels (11) or hinged chisel holders mounted on the edges of the cylindrical cutter (3) which clear the space in front of the supports to which the cylindrical cutter is secured.
(FR) Une pelle de dérochage (1) comprend des burins rabattables brise-roc (11) ou des porte-burins rabattables agencés sur les bords de la fraise cylindrique (3) et qui dégagent l'espace situé devant les supports auxquels est fixée la fraise cylindrique.
Designated States: BR, JP, SU, US
European Patent Office (AT, BE, CH, DE, FR, GB, IT, LU, NL, SE)
Publication Language: German (DE)
Filing Language: German (DE)